Copyright Free Images and Audio

Where can I get free and copyright free images? (Make sure that you check the site – you may have to show credit – even if it is copyright free)
Library of Congress/ American Memory Project:http://memory.loc.gov/ammem/index.html
Prints & Photographs Reading Room: http://www.loc.gov/rr/print/catalog.html

Babelgum http://www.babelgum.com/index.php?category=history
Netrekker http://school.nettrekker.com/frontdoor/
Encyclopedia of Life http://www.eol.org/
Life Photos http://images.google.com/hosted/life
pics4learning
http://digitalmediaresources.wikispaces.com/Image+Resources
http://www.archives.gov/
Library of Congress http://www.loc.gov/index.html
A good site that provides links to both images and guidelines for their use:http://www.lib.washington.edu/types/images/
Where can I get free and/or copyright free music?
Royalty Free Music http://www.royaltyfreemusic.com/
Pod Safe Audio http://podsafeaudio.com/
Kaplaa http://kaplaa.com/
SoundSnap http://www.soundsnap.com/
Shambles: Sound Effects and Music http://www.shambles.net/pages/school/SoundE/
Educational CyberPlayGround: Get Music Downloads http://www.edu-cyberpg.com/Music/FREE.html
Open Source Audio http://www.edu-cyberpg.com/Music/FREE.html
Incompetech Royalty Free Music http://incompetech.com/m/c/royalty-free/
Mutopia (public domain sheet music) http://www.ibiblio.org/mutopia/
Opsound Copyright friendly sound http://www.opsound.org/index.php
Find Sounds http://www.findsounds.com/
FreePlay Music (check for licensing) http://www.findsounds.com/
Partners in Rhyme: Free Sound Effects http://www.partnersinrhyme.com/pir/PIRsfx.shtml
Partners in Rhyme: Free Music Loops http://www.partnersinrhyme.com/pir/free.html
Partners in Rhyme: Free Midi Files http://www.partnersinrhyme.com/midi/index.shtml
Partners in Rhyme: Free Weather Sound Effectshttp://www.partnersinrhyme.com/soundfx/Weather.shtml
Soundzabound Music Library http://www.soundzabound.com/index.php
ccMixter http://ccmixter.org/
Classic Cat (classical music) http://www.classiccat.net/#black
WavList.com http://new.wavlist.com/
http://theconnectedclassroom.wikispaces.com/Digital_Audio
http://digitalcommons.psu.edu/freemedia